217728840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{259201}}^1$

素因数の和:259222

約数の個数: 64

約数和(自身を含む): 746501760

約数和(自身を除く): 528772920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 259201, 518402, 777603, 1036804, 1296005, 1555206, 1814407, 2073608, 2592010, 3110412, 3628814, 3888015, 5184020, 5443221, 6220824, 7257628, 7776030, 9072035, 10368040, 10886442, 14515256, 15552060, 18144070, 21772884, 27216105, 31104120, 36288140, 43545768, 54432210, 72576280, 108864420, 217728840]

約数ペア:

[(1, 217728840), (2, 108864420), (3, 72576280), (4, 54432210), (5, 43545768), (6, 36288140), (7, 31104120), (8, 27216105), (10, 21772884), (12, 18144070), (14, 15552060), (15, 14515256), (20, 10886442), (21, 10368040), (24, 9072035), (28, 7776030), (30, 7257628), (35, 6220824), (40, 5443221), (42, 5184020), (56, 3888015), (60, 3628814), (70, 3110412), (84, 2592010), (105, 2073608), (120, 1814407), (140, 1555206), (168, 1296005), (210, 1036804), (280, 777603), (420, 518402), (840, 259201)]